CVE-2024-47823

Livewire Remote Code Execution (RCE) on File Uploads

Published Oct 8, 2024 CVSS 4.0 · 7.7 High EPSS < 1% KEV · Not listed

Description

Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire prior to `2.12.7` and `v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release versions `2.12.7` and `3.5.2`. All users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

livewire

affected

Version	Status	Constraints
`>= 3.0.0-beta.1, < 3.5.2`	affected	—
`< 2.12.7`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:laravel:livewire::::::::
	cpe:2.3:a:laravel:livewire::::::::

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
EUVD	EUVD-2024-3024	Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire prior to `2.12.7` and `v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release versions `2.12.7` and `3.5.2`. All users are advised to upgrade. There are no known workarounds for this vulnerability.
Github GHSA	GHSA-f3cx-396f-7jqp	Livewire Remote Code Execution on File Uploads

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.846% probability within 30 days)

Exploitation poc

Automatable no

Technical Impact total

References

Link	Providers
https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5
https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9
https://github.com/livewire/livewire/pull/8624
https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqp

History

Oct 10, 2024 12:00 AM Description updated. Added references View changes

Type	Values Removed	Values Added
Description	Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire `< v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release version 3.5.2. All users are advised to upgrade. There are no known workarounds for this vulnerability.	Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire prior to `2.12.7` and `v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release versions `2.12.7` and `3.5.2`. All users are advised to upgrade. There are no known workarounds for this vulnerability.
References		https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9 https://github.com/livewire/livewire/pull/8624

Oct 8, 2024 7:15 PM First appearance in the feed. Affected versions updated. Affected vendors updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
First Time appeared		Laravel Laravel livewire
CPEs		cpe:2.3:a:laravel:livewire::::::wordpress::*
Vendors & Products		Laravel Laravel livewire
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Oct 8, 2024 6:00 PM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire `< v3.5.2`, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., `image/png`) and a “.php” file extension. If the following criteria are met, the attacker can carry out an RCE attack: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release version 3.5.2. All users are advised to upgrade. There are no known workarounds for this vulnerability.
Title		Livewire Remote Code Execution (RCE) on File Uploads
Weaknesses		CWE-20
References		https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5 https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqp
Metrics		cvssV4_0 `{'score': 7.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}`